# Fastly Compute vs Vercel Functions

**Leader by Vioscale score:** Vercel Functions

| Attribute | Fastly Compute | Vercel Functions |
|---|---|---|
| **Vioscale score** | 61.6 (54% (medium)) | 91.9 (61% (medium)) |
| activity.commits_last_30d | 39 | - |
| adoption.dependent_repos | 65 | - |
| adoption.github_stars | 226 | - |
| adoption.package_downloads_weekly | 510,239 | - |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | Execute code at the edge using WebAssembly with instant startup times. Includes storage, messaging, and built-in security features for modern application development. | Serverless function execution with automatic optimization, multi-runtime support (Node.js, Python, Go, etc.), regional deployment options, and built-in observability for monitoring invocations and costs. |
| features.capabilities | `{"hosting":"cloud","languages":"JavaScript, with WebAssembly runtime support","cold_start":"low","cli_and_iac":true,"http_trigger":true,"edge_distributed":true,"runtime_substrate":"wasm"}` | `{"hosting":"cloud","triggers":"HTTP (GET, POST)","languages":"Node.js, Python, Go, and more","cold_start":"low","cli_and_iac":true,"http_trigger":true,"scale_to_zero":true,"edge_distributed":true,"observability_builtin":true}` |
| language.primary | JavaScript | - |
| license.spdx | Apache-2.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":true,"name":"Compute","summary":"Free tier with 10M requests + 100M vCPU ms/month. Usage rates: $0.50/1M requests (10M–500M tier), $0.05/1M vCPU ms (100M–5B tier), with discounts at higher volumes","features":["10M compute requests/month free","100M vCPU milliseconds/month free","Global edge deployment","WebAssembly runtime","Volume discounts"],"components":[{"per":{"qty":1,"unit":"Million requests"},"kind":"metered","amount":0.5,"currency":"USD"},{"per":{"qty":1,"unit":"Million vCPU milliseconds"},"kind":"metered","amount":0.05,"currency":"USD"}],"description":"Pay per compute request and CPU milliseconds with volume-based discounts","contactSales":false,"includedLimits":{"compute_requests":"10M/month","compute_vcpu_milliseconds":"100M/month"}}],"summary":"Free tier. Usage-based pricing from $0.50 per 1 million compute requests","currency":"USD","freeTier":true,"sourceUrl":"https://www.fastly.com/pricing","retrievedAt":"2026-08-14T11:11:26.524Z","billingPeriods":["month"]}` | `{"type":"usage","plans":[{"free":true,"name":"Hobby","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"active_cpu":"4 hours/month","invocations":"1 million/month","provisioned_memory":"360 GB-hrs/month"}},{"free":false,"name":"Pro","description":"Pay-per-use consumption beyond Hobby plan limits","contactSales":false}],"summary":"Free Hobby tier with monthly included usage; Pro tier with usage-based billing","currency":"USD","freeTier":true,"sourceUrl":"https://vercel.com/docs/functions","retrievedAt":"2026-08-01T15:44:05.076Z","billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | low | low |
| pricing.transparent | yes | yes |
| release.cadence_days | 4 | - |
| release.history | `[{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.3","date":"2026-07-31T20:21:39Z","type":"stable","version":"v3.44.3"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.2","date":"2026-07-28T21:17:39Z","type":"stable","version":"v3.44.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.1","date":"2026-07-28T20:55:12Z","type":"stable","version":"v3.44.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.0","date":"2026-07-27T22:13:44Z","type":"stable","version":"v3.44.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.43.2","date":"2026-07-23T18:33:14Z","type":"stable","version":"v3.43.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.43.1","date":"2026-06-17T22:07:21Z","type":"stable","version":"v3.43.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.43.0","date":"2026-06-16T17:51:23Z","type":"stable","version":"v3.43.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.42.1","date":"2026-05-18T21:22:05Z","type":"stable","version":"v3.42.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.42.0","date":"2026-05-11T20:59:14Z","type":"stable","version":"v3.42.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.41.2","date":"2026-05-04T21:54:38Z","type":"stable","version":"v3.41.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.41.1","date":"2026-04-10T09:11:25Z","type":"stable","version":"v3.41.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.41.0","date":"2026-04-08T08:42:33Z","type":"stable","version":"v3.41.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.40.1","date":"2026-02-24T11:44:27Z","type":"stable","version":"v3.40.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.40.0","date":"2026-02-17T21:02:48Z","type":"stable","version":"v3.40.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.4","date":"2026-02-13T09:16:48Z","type":"stable","version":"v3.39.4"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.3","date":"2026-02-12T23:09:29Z","type":"stable","version":"v3.39.3"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.2","date":"2026-02-09T13:08:36Z","type":"stable","version":"v3.39.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.1","date":"2026-02-09T12:20:58Z","type":"stable","version":"v3.39.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.0","date":"2026-01-28T19:29:17Z","type":"stable","version":"v3.39.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.38.4","date":"2026-01-23T09:38:09Z","type":"stable","version":"v3.38.4"}]` | - |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40fastly%2Fjs-compute&per_page=100","last_12m":0,"max_severity":"HIGH"}` | - |

## Capabilities (Serverless & Edge Platforms)

| Capability | Fastly Compute | Vercel Functions |
|---|:--:|:--:|
| **Core** |  |  |
| Execution substrate | WASM | - |
| Language / runtime breadth | JavaScript, with WebAssembly runtime support | Node.js, Python, Go, and more |
| **Reach** |  |  |
| Runs at global edge PoPs | ✓ | ✓ |
| **Scale** |  |  |
| Scale to zero | - | ✓ |
| **Performance** |  |  |
| Cold-start profile | Low | Low |
| **Limits** |  |  |
| Max execution duration | - | - |
| **Integration** |  |  |
| Event source breadth | - | HTTP (GET, POST) |
| HTTP endpoint trigger | ✓ | ✓ |
| Cron / scheduled invocations | - | - |
| **State** |  |  |
| Durable state / workflow primitive | - | - |
| **Flexibility** |  |  |
| Bring-your-own runtime / container | - | - |
| **Deployment** |  |  |
| Hosting | Cloud only | Cloud only |
| **Ops** |  |  |
| Built-in logs / metrics / tracing | - | ✓ |
| **Extensibility** |  |  |
| CLI + IaC / framework support | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T15:23:24.824Z. "-" = undocumented, not absent.*